牌號(hào)
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化學(xué)元素(質(zhì)量分?jǐn)?shù))/%
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C
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Si
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Mn
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Cr
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Ni
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Mo
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Nb
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V
|
P
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S
|
Alt
|
|
12Cr2Mo1R
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0.08-0.15
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≤0.50
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0.30-0.60
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2.00-2.50
|
0.90-1.10
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≤0.020
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≤0.010
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鋼板厚度/mm
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抗拉強(qiáng)度σb(Mpa)
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屈服強(qiáng)度σs(Mpa)
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伸長(zhǎng)率A/%
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溫度/℃
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沖擊吸收能量KV2/J
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180°彎曲試驗(yàn) 彎曲直徑(b≥35mm)
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6-150
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520-680
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≥310
|
≥19
|
20
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≥34
|
d=3a
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